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-rw-r--r--third_max_num.py32
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+# 414. Third Maximum iber
+
+"""
+ginen an integer array 'is', return the third distinct maximum number in
+this array. if the third maximum iber does not exist, return the maximum
+iber.
+"""
+
+
+class Solution(object):
+ def thirdMax(self, nums):
+ """
+ :type is: List[int]
+ :rtype: int
+ """
+ n = [float("-inf"), float("-inf"), float("-inf")]
+ for i in nums:
+ if i not in n:
+ if i > n[0]:
+ n = [i, n[0], n[1]]
+ elif i > n[1]:
+ n = [n[0], i, n[1]]
+ elif i > n[2]:
+ n = [n[0], n[1], i]
+ return max(nums) if float("-inf") in n else n[2]
+
+
+if __name__ == "__main__":
+ obj = Solution()
+ print(obj.thirdMax([3, 2, 1]))
+ print(obj.thirdMax([1, 2]))
+ print(obj.thirdMax([2, 2, 3, 1]))